EVANSVILLE - A potential conflict of interest between a prosecuting attorney and judge is being cited as the latest reason for delaying the trial of Eric Weston Dunn, who is charged in connection to the home invasion robbery of Ira Beumer.

It is the latest twist in a complicated series of interconnected cases associated with the Feb. 19, 2012 incident at Beumer's home on Big Cynthiana Road, including a grand jury's indictment of Beumer for murder stemming from a vehicle chase and crash after the robbery.

Dunn, 23, was one of four men arrested for the robbery. He faces charges of burglary resulting in bodily injury, criminal confinement, assisting a criminal and theft. But his trial in Vanderburgh Superior Court, which had been scheduled for next week, is facing yet another delay.

On Tuesday, Chief Deputy Prosecutor Gary Schutte confirmed that Judge Robert Pigman will no longer hear the case because he is a former law partner with deputy prosecutor Charlie Berger, who is helping Schutte try the case. He said it will be assigned to Judge Wayne Trockman. A new trial date has not been set. Dunn was released on $2,500 cash bail in January.

This will be the third judge and fourth trial date for Dunn's case. Judge Mary Margaret Lloyd had presided until December, when the case was shifted to Pigman, who now presides over Superior Court's criminal division.

Dunn was arrested two months after the robbery after investigators said they believed cell phone records and text messages showed his involvement, according to the Vandeburgh County Sheriff's Office.

Dezmont Hogan, 24; Jeton Hall, 22; and Nalakeio Bennett, 20, are charged with burglary, criminal confinement and theft related to the home invasion. They are being held at the Vanderburgh County Jail. Hogan is scheduled to be tried April 1 and Bennett on April 22.

An investigation by the Vanderburgh County Sheriff's Office and Indiana State Police concluded Beumer intentionally rammed his Dodge pickup into their fleeing car while pursuing them. The resulting wreck killed 22-year-old Antuan Jenkins and severely injuring Hall, according to court records.

Hall's defense attorney is seeking to have him declared incompetent to assist in his defense because of brain injuries suffered in the crash. A judge is expected to rule on the motion on March 22.

According to Vanderburgh County Sheriff's Office reports, the men waited for Beumer to return home and then robbed him at gunpoint and fled in a Pontiac Grand Am. Beumer gave chase in his Dodge Ram pickup, according to sheriff's reports, crashing it into the back of the Grand Am at high speed after the car went off road and was returning back to it.

Beumer was released from jail after posting $2,000 bail in May when former Circuit Court Judge Carl Heldt reduced his bond to the level for voluntary manslaughter.